| Name ▲ | Age | Gender | Owner | Actions |
|---|
| On The Right Path | 1 | Filly | Black Briar Stables | View |
| On the Rise | 1 | Colt | Hidden Oak Farm | View |
| On to the Next | 1 | Filly | Black Briar Stables | View |
| Once In A While | 1 | Filly | Generous Bloodstock | View |
| One Fine Morning | 1 | Filly | Generous Bloodstock | View |
| One Way Or Another | 1 | Colt | AllegroThoroughbreds | View |
| One With The Force | 1 | Colt | AllegroThoroughbreds | View |
| Opalite | 1 | Filly | Generous Bloodstock | View |
| Orchid | 1 | Filly | Hidden Oak Farm | View |
| Original Prankster | 1 | Colt | Lochiedo Stables | View |
| Oro Olímpico | 1 | Colt | Hidden Oak Farm | View |
| Osyraa | 1 | Filly | Black Briar Stables | View |
| Outonthecurb | 1 | Colt | Renegade Racing and Breeding | View |
| Overtime | 1 | Filly | Gintara Lodge | View |
| OystersInMyPocket | 1 | Filly | Gotapa Racing | View |
| Pacific Crest | 1 | Colt | AllegroThoroughbreds | View |
| Paint Me A Sunset | 1 | Filly | Sakura Springs | View |
| Paint the Way | 1 | Filly | Black Briar Stables | View |
| Palestrina | 1 | Filly | New Boston Stables | View |
| Palisades | 1 | Colt | Hidden Oak Farm | View |